CN219917618U - High-voltage bus lap joint structure - Google Patents

Abstract

The utility model relates to the technical field of high-voltage switch complete equipment, in particular to a high-voltage bus lap joint structure. The high-voltage bus lap joint structure comprises a first bus, a second bus and a plurality of connecting pieces; along the length direction of the first busbar, the first busbar comprises a first connecting plate and a first extending plate which are sequentially connected; along the length direction of the second busbar, the second busbar comprises a second connecting plate and a second extending plate which are sequentially connected; the first connecting plate and the first extending plate are positioned on the same plane; the second connecting plate and the second extending plate are respectively positioned on different planes; the first connecting plate and the second extending plate are positioned on the same plane; the first connecting plate is arranged above the second connecting plate, and the first connecting plate and the second connecting plate are detachably connected through the connecting piece. So can accomplish the overlap joint connection between the bus bar between the counter high-efficient, swiftly, and simple structure, spare part are fewer, the operation is also more convenient.

Description

High-voltage bus lap joint structure

Technical Field

The utility model relates to the technical field of high-voltage switch complete equipment, in particular to a high-voltage bus lap joint structure.

Background

The switch cabinet has the main functions of opening and closing, controlling and protecting electric equipment in the power generation, transmission, distribution and electric energy conversion processes of the electric power system. The circuit breaker can be divided into a movable type switch cabinet and a fixed type switch cabinet according to the installation mode of the circuit breaker. The existing KYN28 type movable switch cabinet has the following disadvantages that the bus bars between the cabinets are connected through the overlap blocks:

1. the potential safety hazard is many: the bus bars among the structural cabinets are connected through the lap joint blocks, the lap joint points are more, and the bolts are in leakage fastening;

2. wen Shengcha: the number of lap joints is large, the resistance value is high, and the temperature rise effect is poor;

3. the waste is as follows: the bus bars among the cabinets need to be additionally made with overlap blocks, so that materials are added;

4. poor interchangeability: A. b, C three-phase busbar lap joint connection processes are different, and the universality is poor.

Disclosure of Invention

The utility model aims to provide a high-voltage bus lap joint structure which can efficiently and quickly finish lap joint connection between bus bars between cabinets, and has the advantages of simple structure, fewer parts and more convenient operation.

Embodiments of the utility model may be implemented as follows:

in a first aspect, the present utility model provides a high voltage bus bar overlap structure comprising:

the first busbar, the second busbar and the plurality of connecting pieces;

the first busbar comprises a first connecting plate and a first extending plate which are sequentially connected along the length direction of the first busbar;

the second busbar comprises a second connecting plate and a second extending plate which are sequentially connected along the length direction of the second busbar;

the first connecting plate and the first extending plate are positioned on the same plane; the second connecting plate and the second extending plate are respectively positioned on different planes; the first connecting plate and the second extending plate are positioned on the same plane;

the first connecting plate is arranged above the second connecting plate, and the first connecting plate is detachably connected with the second connecting plate through the connecting piece.

Such high voltage bus overlap joint structure includes first female row and the second female row of interconnect, and first female row and second female row pass through the connecting piece and dismantle the connection. The first connecting plate and the first extending plate of the first busbar are positioned on the same plane; the second connecting plate and the second extending plate of the second busbar are positioned on different planes, namely the second connecting plate and the second extending plate are connected in a staggered mode. So make first female row and the female row of second realize dislocation overlap joint connection, cancelled the setting of overlap joint piece when guaranteeing first female row and the female row of second stable connection. The arrangement mode eliminates the overlap joint blocks, reduces the cost of parts and materials, reduces the overlap joint points and improves the condition of bolt leakage; the overlap block is canceled, and bolts connected with the overlap block are reduced, so that the resistance value is reduced, and rapid temperature rise is avoided; meanwhile, the arrangement has the advantages of simple structure and universal applicability, and the universality of the lap joint structure is improved. In conclusion, the high-voltage bus lap joint structure has the advantages of simple structure, convenience in operation and manufacture, and is beneficial to large-scale assembly line production, so that the high-voltage bus lap joint structure has excellent economic benefits.

In an alternative embodiment, the second extension plate is in the same plane as the first connection plate.

In an alternative embodiment, the second connection plate and the second extension plate are parallel to each other.

In an alternative embodiment, the second busbar further includes a transition plate, and the second connection plate is connected to the second extension plate through the transition plate.

In an alternative embodiment, the second connecting plate, the transition plate and the second extension plate are integrally formed.

In an alternative embodiment, the length of the transition plate is less than the length of the second connection plate along the length direction of the second busbar.

In an alternative embodiment, a plurality of the connection members are sequentially arranged along the length direction of the first busbar to connect the first connection plate and the second connection plate.

In an alternative embodiment, a plurality of the connection members are sequentially arranged along the width direction of the first busbar to connect the first connection plate and the second connection plate.

In an alternative embodiment, the first connecting plate is provided with a plurality of first through holes, and the second connecting plate is provided with a plurality of second through holes;

the connecting piece sequentially penetrates through the first through hole and the second through hole to be connected with the first connecting plate and the second connecting plate respectively.

In an alternative embodiment, the second connecting plate has a proximal end proximate to the second extension plate;

along the length direction of the second busbar, the proximal end and the end of the first connecting plate have a preset distance.

The beneficial effects of the embodiment of the utility model include, for example:

the high-voltage bus lap joint structure comprises a first bus bar, a second bus bar and a plurality of connecting pieces; the first connecting plate and the first extending plate are positioned on the same plane; the second connecting plate and the second extending plate are respectively positioned on different planes; the first connecting plate and the second extending plate are positioned on the same plane. So realized first female row and the mutual coplane of second row and connected, still realized that second connecting plate and second extension board are dislocation connection. Under the condition of ensuring stable connection of the first busbar and the second busbar, the scheme of additionally arranging the splicing blocks is omitted, so that the cost of parts is reduced, and fewer bolts are required to be fastened and connected; meanwhile, the resistance of the lap joint position is reduced, and the temperature rise effect is good; and the structure is simple, the arrangement is convenient, and the universality is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art busbar lap joint;

FIG. 2 is a schematic view of another view of a busbar lap joint according to the prior art;

FIG. 3 is a schematic view of a high voltage bus lap joint structure according to an embodiment of the present utility model;

fig. 4 is a schematic structural view of another view of the high-voltage bus bar lap joint structure according to the embodiment of the present utility model.

Icon: 20-busbar parts; 21-a splicing block; 22-bolts; 10-a high-voltage bus lap joint structure; 11-upper plane; 12-lower plane; 100-a first busbar; 101-a first through hole; 110-a first connection plate; 120-a first extension plate; 200-a second busbar; 202-a second through hole; 210-a second connection plate; 211-proximal end; 220-a second extension plate; 230-bending part; 300-connectors; 400-transition plate.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a busbar joint in the prior art, and fig. 2 is a schematic structural diagram of another view of the busbar joint in the prior art.

It can be seen from the figure that the inter-cabinet bus bars are connected by means of a snap-on block 21. In particular, both busbar members 20 are flat plates. The two busbar members 20 lie in the same plane and are aligned with each other. The overlapping block 21 is disposed below the two busbar members 20, and the overlapping upper surfaces respectively abut against the lower surfaces of the end portions of the two busbar members 20. Each busbar 20 is connected to the joint block 21 by four bolts 22 in two rows and two columns. That is, such a busbar joint structure requires another one joint block 21 and eight bolts 22 to complete the connection between two busbars. However, such busbar lap joint structure has the following disadvantages:

1. the potential safety hazard is many: the bus bars among the structural cabinets are connected through lap joints, the number of lap joints is large, and the bolts are in leakage fastening;

2. wen Shengcha: the number of lap joints is large, the resistance value is high, and the temperature rise effect is poor;

3. the waste is as follows: the bus bars among the cabinets need to be additionally made with overlap blocks, so that materials are added;

4. poor interchangeability: A. b, C three-phase busbar are all different.

In order to improve the above technical problems, a high voltage bus bar lap joint structure is provided in the following embodiments.

Referring to fig. 3 and 4, the present embodiment provides a high voltage bus bar overlap structure 10, which includes:

a first busbar 100, a second busbar 200 and a plurality of connectors 300;

along the length direction of the first busbar 100, the first busbar 100 includes a first connection plate 110 and a first extension plate 120 connected in sequence;

along the length direction of the second busbar 200, the second busbar 200 includes a second connection plate 210 and a second extension plate 220 connected in sequence;

the first connection plate 110 and the first extension plate 120 are located on the same plane; the second connection plate 210 and the second extension plate 220 are respectively located at different planes; the first connecting plate 110 and the second extending plate 220 are positioned on the same plane;

the first connection plate 110 is disposed above the second connection plate 210, and the first connection plate 110 and the second connection plate 210 are detachably connected through the connection member 300.

Such a high voltage bus bar overlap structure 10 includes a first bus bar 100 and a second bus bar 200 connected to each other, and the first bus bar 100 and the second bus bar 200 are detachably connected by a connector 300. Specifically, the first connection plate 110 and the first extension plate 120 of the first busbar 100 are located on the same plane; the second connection plates 210 and the second extension plates 220 of the second busbar 200 are located on different planes, i.e. the second connection plates 210 and the second extension plates 220 are connected in a staggered manner. So that the first busbar 100 and the second busbar 200 are connected in a staggered lap joint manner, and the arrangement of the lap joint block 21 is omitted while the stable connection of the first busbar 100 and the second busbar 200 is ensured. The arrangement mode eliminates the overlap joint block 21, reduces the cost of parts and materials, reduces the overlap joint points and improves the condition of leakage of the bolts 22; the overlap block 21 is omitted, and bolts 22 connected with the overlap block 21 are reduced, so that the resistance value is reduced, and rapid temperature rise is avoided; meanwhile, the arrangement has the advantages of simple structure and universal applicability, and the universality of the lap joint structure is improved. In conclusion, the high-voltage bus lap joint structure 10 has the advantages of simple structure, convenient operation and convenient manufacture, is beneficial to large-scale flow line production, and has excellent economic benefit.

With continued reference to fig. 3 and 4, further details of the high voltage bus bar overlap 10 will be appreciated.

As can be seen, the first busbar 100 and the second busbar 200 are rectangular plates. And the first busbar 100 and the second busbar 200 extend along the same direction, i.e. the length direction of the first busbar 100 is the same as the length direction of the second busbar 200. Optionally, the widths of the first busbar 100 and the second busbar 200 are the same.

In this embodiment, the first connecting plate 110 and the first extending plate 120 are integrally formed, i.e. the first busbar 100 is a flat plate. And the second connection plate 210 and the second extension plate 220 are rectangular straight plate members, respectively.

In the present embodiment of the present utility model, the second extension plate 220 is located on the same plane as the first connection plate 110. Such an arrangement can further ensure that the high voltage bus bar overlap 10 has a smaller space occupation, thereby increasing the flexibility of the overlap arrangement.

Further, the first connecting plate 110, the first extending plate 120 and the second extending plate 220 are all located on the same plane, which is named as the upper plane 11; the second web 210 lies in a different, other plane, designated as the lower plane 12. The second connecting plate 210 abuts against the bottom surface of the first connecting plate 110. And the upper plane 11 and the lower plane 12 are parallel to each other.

With continued reference to fig. 3, it can be seen that the second connector plate 210 and the second extension plate 220 are parallel to each other. This enables the second extension plate 220 to maintain the same extension direction as the second connection plate 210 while reducing the volume and space occupation of the second busbar 200.

As can also be seen from fig. 3 and 4, in the present embodiment of the present utility model, the second busbar 200 further includes a transition plate 400, and the second connection plate 210 is connected to the second extension plate 220 through the transition plate 400. The purpose of the transition plate 400 is to interconnect the second connection plate 210 and the second extension plate 220.

Alternatively, in the present embodiment, the second connection plate 210, the transition plate 400 and the second extension plate 220 are integrally formed. This ensures structural stability and reliability of the second busbar 200.

As an alternative embodiment, the second connection plate 210, the transition plate 400 and the second extension plate 220 are formed by bending the same plate. Thus, the second connecting plate 210 and the transition plate 400 form one bending portion 230, and the transition plate 400 and the second extending plate 220 form another bending portion 230. And both of the bent portions 230 are transited by rounded corners, so that the stability and reliability of the structure of the second busbar 200 are ensured.

Regarding the specific structure of the second busbar 200, those skilled in the art should be able to make reasonable selections and designs according to actual needs, and there is no specific limitation herein, and as an example, the second busbar 200 may be welded in multiple segments, or partially welded and partially bent, etc. to be suitable for different practical situations, this is only an example, as long as the second connection plates 210 and the second extension plates 220 are located in different planes to achieve the staggered lap joint, and there is no specific limitation herein.

As can also be seen from the figure, in the present embodiment of the utility model, the length of the transition plate 400 is smaller than the length of the second connection plate 210 along the length direction of the second busbar 200. So that the problems of space occupation and cost waste caused by the excessive space occupation of the transition plate 400 are avoided.

Further, in the present embodiment of the present utility model, the plurality of connection members 300 are sequentially arranged along the length direction of the first busbar 100 to connect the first connection plate 110 and the second connection plate 210. The plurality of connection members 300 are sequentially arranged in the width direction of the first busbar 100 to connect the first connection plate 110 and the second connection plate 210.

That is, the plurality of connection members 300 are uniformly arranged along the length direction and the width direction of the busbar, respectively, to ensure the connection stability of the first busbar 100 and the second busbar 200. Alternatively, in the present embodiment, the high voltage bus bar overlap structure 10 includes four connection members 300 arranged in two rows and two columns. Compared with the prior art, the arrangement mode of eight bolts 22 is needed, the high-voltage bus bar lap joint structure 10 has the advantages that the material consumption is remarkably reduced, and the stability and reliability of connection between bus bars can be ensured.

Alternatively, the connector 300 is a bolt 22.

Further, in the present embodiment, the first connection plate 110 is provided with a plurality of first through holes 101, and the second connection plate 210 is provided with a plurality of second through holes 202; the connection member 300 sequentially penetrates the first and second through holes 101 and 202 to connect the first and second connection plates 110 and 210, respectively.

Specifically, four first through holes 101 are disposed on the first connecting plate 110, four second through holes 202 are disposed on the second connecting plate 210, and the first through holes 101 and the second through holes 202 are disposed in one-to-one correspondence. The four first through holes 101 are arranged in two rows and two columns, respectively, and the four second through holes 202 are arranged in two rows and two columns, respectively. The four connecting members 300 respectively penetrate through the first through hole 101 and the second through hole 202 to connect the first connecting plate 110 and the second connecting plate 210.

It can also be seen that the four second through holes 202 are located at the center of the second connecting plate 210, so as to ensure that the stress of the second connecting plate 210 can be concentrated at the center of the plate, so as to ensure stable and reliable connection between the second connecting plate 210 and the first connecting plate 110.

Further, the second connector plate 210 has a proximal end 211 adjacent to the second extension plate 220; along the length direction of the second busbar 200, the proximal end 211 has a predetermined distance from the end of the first connecting plate 110. By the arrangement, interference between the first busbar 100 and the transition plate 400 bent relative to the first connection plate 110 can be avoided, so that the connection reliability of the first busbar 100 and the second busbar 200 is ensured.

Thus, after the busbar is bent, the overlapping blocks 21 are omitted by staggered overlapping, and 4 bolts 22 are reduced in each phase.

In summary, embodiments of the present utility model provide a high voltage bus bar overlap structure 10 having at least the following advantages:

(1) the universality is strong, and the fool-proofing performance is good;

(2) the design, processing and installation workload is less;

(3) the lap joint number is small, and the temperature rise is good;

(4) the lap joint length is short, and the wiring space in the cabinet is large;

(5) the amount of the busbar is small, and the cost is saved.

The present utility model is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (10)

1. A high voltage bus bar overlap structure, comprising:

a first busbar (100), a second busbar (200) and a plurality of connectors (300);

along the length direction of the first busbar (100), the first busbar (100) comprises a first connecting plate (110) and a first extending plate (120) which are sequentially connected;

along the length direction of the second busbar (200), the second busbar (200) comprises a second connecting plate (210) and a second extending plate (220) which are sequentially connected;

-the first connection plate (110) and the first extension plate (120) are located in the same plane; the second connecting plate (210) and the second extension plate (220) are respectively located on different planes; the first connecting plate (110) and the second extending plate (220) are positioned on the same plane;

the first connecting plate (110) is arranged above the second connecting plate (210), and the first connecting plate (110) and the second connecting plate (210) are detachably connected through the connecting piece (300).

2. The high voltage bus bar overlap structure according to claim 1, characterized in that:

the second extension plate (220) is located in the same plane as the first connection plate (110).

3. The high voltage bus bar overlap structure according to claim 2, characterized in that:

the second connection plate (210) and the second extension plate (220) are parallel to each other.

4. The high voltage bus bar overlap structure according to claim 3, characterized in that:

the second busbar (200) further comprises a transition plate (400), and the second connecting plate (210) is connected with the second extension plate (220) through the transition plate (400).

5. The high voltage bus bar overlap structure according to claim 4, characterized in that:

the second connecting plate (210), the transition plate (400) and the second extension plate (220) are integrally formed.

6. The high voltage bus bar overlap structure according to claim 4, characterized in that:

along the length direction of the second busbar (200), the length of the transition plate (400) is smaller than the length of the second connecting plate (210).

7. The high voltage bus bar overlap structure according to claim 1, characterized in that:

along the length direction of the first busbar (100), a plurality of the connecting pieces (300) are sequentially arranged to connect the first connecting plate (110) and the second connecting plate (210).

8. The high voltage bus bar overlap structure according to claim 1, characterized in that:

a plurality of the connection pieces (300) are sequentially arranged along the width direction of the first busbar (100) to connect the first connection plate (110) and the second connection plate (210).

9. The high voltage bus bar overlap structure according to claim 1, characterized in that:

the first connecting plate (110) is provided with a plurality of first through holes (101), and the second connecting plate (210) is provided with a plurality of second through holes (202);

the connecting piece (300) sequentially penetrates through the first through hole (101) and the second through hole (202) to be connected with the first connecting plate (110) and the second connecting plate (210) respectively.

10. The high voltage bus bar overlap structure according to claim 1, characterized in that:

-the second connection plate (210) has a proximal end (211) adjacent to the second extension plate (220);

along the length direction of the second busbar (200), the proximal end (211) and the end of the first connecting plate (110) have a preset distance.